ThinkPHP implements the file upload function with verification code _ php instance

This article mainly introduces ThinkPHP's implementation of the file upload function with verification code. it is a very practical technique to import and call the instance-related classes, for more information about how ThinkPHP uploads files with verification codes, see the example below. Share it with you for your reference. The specific implementation method is as follows:

ThinkPHP is very simple to upload files. we only need to call a file Upload class UploadFile to quickly implement the upload function. below I will give you an example of the function to be verified when uploading files, I hope the article will help you.

In the template, we only need to call it.

The code is as follows:

Verification code

Php file processing

The code is as follows:

<? Php
ClassIndexActionextendsAction {
/* Verification code */
Publicfunctionverify (){
$ Type = isset ($ _ GET ['type'])? $ _ GET ['type']: 'GIF'; // If the image format of the verification code is not set, the default format is gif.
Import ("@. ORG. Image"); // import the Image class
Image: buildImageVerify (, $ type); // you can specify the number or letter of the verification code.
}
/* File Upload */
Publicfunctionupload (){
If (! Empty ($ file ))
Import ('@. ORG. uploadfile'); // import file Upload class
$ File = newUploadFile (); // instantiate the UploadFile class
// We can set some attributes of file upload.
$ File-> maxSize = 1000000; // you can specify the size of the uploaded image.
$ File-> allowExtes = expload (',', 'jpg, jpeg, png, gif '); // sets the file upload format
$ File-> savePath = '/Tpl/default/Public/Uploads/'; // set the image storage location
$ File-> thumb = 'true'; // whether to set it to a thumbnail
$ File-> thumbPrefix ='s _ '; // you can specify the prefix of a thumbnail.
$ File-> thumbMaxWidth = '000000'; // you can specify the maximum width of an image.
$ File-> thumbMaxHeight = '000000'; // you can specify the maximum image height.
If ($ file-> upload ){
$ List = $ file-> getUploadFileInof (); // Obtain the file upload information
Import ('@. ORG. image ');
// Add a watermark to the image
Image: water ($ list [0] ['savepath'].'s _'. $ list [0] ['savename'], 'File/Tpl/defalut/Public/Images/logo.jpg ');
} Else {
$ This-> error ($ file-> getErrorMsg ());
}
$ Model = M ('photo ');
$ Data ['image'] = $ _ POST ['image'];
$ Data ['create _ time'] = time ();
$ Vo = $ Model-> add ($ data );
If ($ vo! = False ){
$ This-> success ("image uploaded successfully! ");
} Else {
$ This-> error ("image Upload failed ");
}
}
}

Simple Analysis example

The code is as follows:

Import ('@. ORG. uploadfile'); // import file Upload class
$ File = newUploadFile (); // instantiate the UploadFile class

This directly calls the thinkphp file processing class, and we do not need to perform any operations.
There are some differences with other classes during the upload process.

The code is as follows:

$ Model = M ('photo ');
$ Data ['image'] = $ _ POST ['image'];
$ Data ['create _ time'] = time ();
$ Vo = $ Model-> add ($ data );

This $ _ POST ['image'] is used to obtain the name of our html file. this can be an array, that is, multifile Upload.

I hope this article will help you with ThinkPHP programming.